A 67-yeаr-оld right-hаnded mаle is brоught tо the ED by his wife after she noticed he suddenly began struggling to speak during breakfast. She reports that when she asked him if he was okay, he appeared frustrated and replied, "I... want... the... thing..." while gesturing toward his coffee cup. He was able to follow her instructions to stand up, walk to the car, and buckle his seatbelt without difficulty. On exam, the patient is alert and appears to understand all questions and commands. When asked to describe what happened this morning, he speaks in short, effortful phrases with long pauses. He correctly points to objects in the room when asked and follows multi-step commands. However, when asked to name a pen, he says, "I write... the... it's for..." and becomes visibly frustrated. Which of the following best characterizes this patient's language deficit?